NO, GSH and SOD response in serum of Nile tilapia (O. niloticus)to KMnO
(a, c) and FCA (b, d) treatment group, respectively; compared fish with the infected group challenged withS. feraxzoospore 2x104and control group. N=8 fish/sampling time. Values are reported as mean ± SE. Values with a different letter superscript are significantly different between and within groups (p < 0.05).